Publication detail

Gain-Controllable Transadmittance-Mode First-Order Allpass Filters with Electronic Tune Using Single Active Element

TANAPHATSIRI, C. KHATEB, F. ŠOTNER, R. JAIKLA, W.

Original Title

Gain-Controllable Transadmittance-Mode First-Order Allpass Filters with Electronic Tune Using Single Active Element

Type

journal article in Web of Science

Language

English

Original Abstract

First-order allpass filters are analog filters with a unit magnitude response, but they change the phase shift between input and output signals at various frequencies. This paper presents the transadmittance-mode first-order allpass filters based on the modified current-controlled current differencing transconductance amplifier (M-CCCDTA). The proposed filters utilize a single M-CCCDTA and a grounded capacitor with no external resistors, making them well suited for implementation in an integrated circuit. The gain and phase response of the proposed filters can be adjusted electronically and separately. Also, the high output impedance of the proposed filters at both the input voltage node and the output current node makes cascading easy without the need for buffer devices. A quadrature sinusoidal oscillator based on the proposed first-order allpass filter has been designed as an example of an application. The PSpice simulation and actual experiments are utilized to validate the functionality of the proposed filters. The simulation and experimental results are consistent with the idea of anticipation.

Keywords

Transadmittance mode; M-CCCDTA; allpass filter; phase shifter; integrated circuit; analog circuit

Authors

TANAPHATSIRI, C.; KHATEB, F.; ŠOTNER, R.; JAIKLA, W.

Released

1. 2. 2024

Publisher

WORLD SCIENTIFIC PUBL CO PTE LTD

Location

SINGAPORE

ISBN

1793-6454

Periodical

JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS

Year of study

33

Number

3

State

Republic of Singapore

Pages from

1

Pages to

23

Pages count

23

URL

https://doi.org/10.1142/S0218126624500464

BibTex

@article{BUT184516,
  author="Chaiya {Tanaphatsiri} and Fabian {Khateb} and Roman {Šotner} and Winai {Jaikla}",
  title="Gain-Controllable Transadmittance-Mode First-Order Allpass Filters with Electronic Tune Using Single Active Element",
  journal="JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS",
  year="2024",
  volume="33",
  number="3",
  pages="1--23",
  doi="10.1142/S0218126624500464",
  issn="1793-6454",
  url="https://doi.org/10.1142/S0218126624500464"
}